Perhaps these cables securing adjusts Original TetherTools USB cable. But my my three fit only very limited. The original Canon USB cable is too thin. It is anyway not used by me OnLocation. Also, my 7.50 meters Oehlbach is just thick enough that keeps this tool on the cable. Then the cable must be bent so closely that you have to fear for the cable shield. Especially now a huge arc cable from the camera 5D MarkIII projects, which is more hindered than useful. Naürlich it's annoying when just misses at the moment where everything fits the cable from the camera and the picture is not transferred to the computer. Then prefer a little more careful than expensive cable breaks and annoying cables arches at the camera. Nevertheless, there are three stars. Perhaps it is more appropriate to the USB cables from the manufacturer.